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Finding the Fourth Proportional to 266.79, 367.94 and 173.50

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Solution

The fourth proportional to 266.79, 367.94 and 173.50 is: 239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.79 : 367.94 = 173.50 : x
  2. Step 2: Convert to fraction form
    266.79/367.94 = 173.50/x
  3. Step 3: Cross multiply
    266.79x = 367.94 × 173.50
  4. Step 4: Simplify right side
    266.79x = 63,837.59
  5. Step 5: Solve for x
    x = 63,837.59/266.79
  6. Step 6: Final answer
    x = 239.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.